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dns_mx(3)		    Library Functions Manual		       dns_mx(3)

NAME
     dns_mx - look up Mail eXchanger

SYNTAX
     #include <libowfat/dns.h>

     int dns_mx(stralloc* out,stralloc* fqdn);

DESCRIPTION
     dns_mx  looks up MX records for the fully-qualified domain name in fqdn. It
     puts the MX records into out and returns 0. Each MX record is a two-byte MX
     distance (big endian) followed by a \0-terminated dot-encoded domain  name.
     If  the  domain  does  not  exist in DNS, or has no MX records, out will be
     empty.

     If dns_mx has trouble with the DNS lookup or runs out of memory, it returns
     -1, setting errno appropriately. It may or may not change out.

SEE ALSO
     dns_mx_packet(3), dns_ip4(3), dns_ip6(3)

								       dns_mx(3)

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